Class Provider

constructor

• new Provider(__namedParameters): Provider

• Initialize with Wallet or SolanaKeypair. Feepayer is the provided wallet Optionally provide confirmConfig, Default = 'confirmed'.

  Parameters

  • __namedParameters: {
        assetLookupTable?: PublicKey[];
        confirmConfig?: ConfirmOptions;
        connection?: Connection;
        minimumLamports?: BN;
        relayer?: Relayer;
        url?: string;
        verifierProgramLookupTable?: PublicKey[];
        wallet: Keypair | Wallet;
    }

    • Optional assetLookupTable?: PublicKey[]

    • Optional confirmConfig?: ConfirmOptions

    • Optional connection?: Connection

    • Optional minimumLamports?: BN

    • Optional relayer?: Relayer

    • Optional url?: string

    • Optional verifierProgramLookupTable?: PublicKey[]

    • wallet: Keypair | Wallet

  Returns Provider

confirmConfig

Optional connection

Optional lookUpTable

lookUpTables

minimumLamports

poseidon

Optional provider

relayer

Optional solMerkleTree

Optional url

wallet

addAssetPublickeyToLookUpTable

• addAssetPublickeyToLookUpTable(address): void

• Parameters

  • address: PublicKey

  Returns void

addVerifierProgramPublickeyToLookUpTable

• addVerifierProgramPublickeyToLookUpTable(address): void

• Parameters

  • address: PublicKey

  Returns void

latestMerkleTree

• latestMerkleTree(indexedTransactions?): Promise<void>

• Fetches the latest Merkle tree by calling the fetchMerkleTree method with the TRANSACTION_MERKLE_TREE_KEY as the key.

  Parameters

  • Optional indexedTransactions: IndexedTransaction[]

    An optional array of IndexedTransaction objects. If provided, the fetch operation will use these transactions.

  Returns Promise<void>

  A Promise that resolves when the operation is completed.

Static init

• init(__namedParameters): Promise<Provider>

• Initializes a Provider instance. This method should only be used if you use the WalletAdapter, such as in the browser. If you use a local keypair, use getNodeProvider() instead.

  Throws

  Throws an error if the wallet parameter is not provided.

  Remarks

  This method is used to initialize a new instance of the Provider class.

  • It loads the Poseidon hash function.
  • Fetches the lookup table.
  • Fetches the Merkle tree with the TRANSACTION_MERKLE_TREE_KEY.
  • Finally returns the initialized Provider instance.

  Parameters

  • __namedParameters: {
        assetLookupTable?: PublicKey[];
        confirmConfig?: ConfirmOptions;
        connection?: Connection;
        relayer?: Relayer;
        url?: string;
        verifierProgramLookupTable?: PublicKey[];
        wallet: Keypair | Wallet;
    }

    • Optional assetLookupTable?: PublicKey[]

    • Optional confirmConfig?: ConfirmOptions

    • Optional connection?: Connection

    • Optional relayer?: Relayer

    • Optional url?: string

    • Optional verifierProgramLookupTable?: PublicKey[]

    • wallet: Keypair | Wallet

  Returns Promise<Provider>

  A promise that resolves to a Provider instance.

Static loadMock

• loadMock(): Promise<Provider>

• Static method to load a mock Provider.

  • This method is used for testing purposes to generate a mock Provider.
  • It initializes a Provider with a mock wallet and URL.
  • It also loads Poseidon hash function and initializes a Solana lookup table and a Solana Merkle Tree.

  Returns Promise<Provider>

  A promise that resolves to a mock Provider.